Senior Engineering Manager, User Platform & Enterprise

Get to Know Us

Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to the mission of enabling organizations to proactively find, fix and verify exploitable attack vectors before criminals exploit them. Our flagship product, the NodeZeroTM platform, delivers production-safe autonomous pentests and other key assessment operations that scale across the largest internal, external, cloud, and hybrid cloud environments. NodeZero has been adopted by organizations of all sizes, from small educational institutions to government agencies and Global 100 enterprises. It is used by IT Ops/SecOps teams, consulting pentesters, and MSSPs and MSPs.

We are a fusion of former U.S. Special Operations cyber operators, startup engineers & operators, and formerly frustrated cybersecurity practitioners. We're committed to helping solve our common security problems: ineffective security tools and false positives, resulting in alert fatigue, blind spots, "checkbox” security culture, cybersecurity skills shortage, and the long lead time and expense of hiring outside consultants. Collectively, we are a team of learn-it-alls, committed to a culture of respect, collaboration, ownership, and results.

As a remote first company, we require minimum 25Mbps consumer grade broadband connection.

What You'll Do

We’re looking for a Senior Engineering Manager to lead our User Platform & Enterprise team — a high-impact group within our Application Platform team which drives all user settings and enterprise capabilities across the product, and helps improve our client experience overall.

This is a technical leadership role focused on driving excellence in Enterprise user experience, creating a cohesive user platform vision, and pushing for explainability and scalability in our licensing framework. The User Platform & Enterprise team owns our base user platform experience, our entitlement framework and feature flagging systems, and many of our key enterprise differentiating features.

This is an ideal opportunity for someone who loves diving into ideal user flows and information display, and cares deeply about building sustainable user-facing platforms which can scale for both mid-market and enterprise customers.

What You’ll Bring

• Experience leading teams of 6-10 cross functional software engineers.

• Proven experience leading highly technical backend or platform engineering teams — ideally within a SaaS, cybersecurity, or cloud-scale environment.

• Experience leading initiatives around authentication, authorization, user settings, tenant management, or auditability.

• Experienced with multi-persona products, particularly building features for Enterprise clients.

• You think in terms of platforms and systems, not just features, and you balance security, usability, and scalability in every decision.

• Experience designing multi-tenant SaaS platforms or MSP-oriented capabilities.

• Exposure to audit/compliance frameworks (SOC2, FedRAMP, ISO 27001).

• Background in cybersecurity, identity management, or enterprise SaaS security features.

• Experiencing managing tech leads or other managers.

Required Tech Stack Experience

• Strong background in backend engineering and/or platform engineering.

• Expertise in at least one object-oriented programming language (Python strongly preferred; open to Go, Java, C++, or similar).

• Familiarity with ETL pipelines, data flow orchestration, and database performance optimization (PostgreSQL, Neo4j, or equivalent).

• Understanding of cloud infrastructure and services (AWS, Azure, or GCP), including networking, compute, and storage fundamentals.

• Exposure to infrastructure-as-code and deployment concepts (e.g., Terraform, Docker, Kubernetes, CI/CD tooling).

• Experience with observability and monitoring stacks (Prometheus, Grafana, OpenTelemetry, etc.).

• Understanding of security and reliability best practices, especially in a multi-tenant SaaS or cybersecurity environment.

• Knowledge of Linux-based systems (Ubuntu, Kali, etc.) and modern development practices for distributed environments.

Travel Required

We are a fully remote company, and this job may require up to 5% of travel to be successful.

Compensation and Values

At Horizon3, we believe that our people are our greatest asset, and our compensation philosophy reflects this core value. We are committed to fostering an environment where all employees feel valued, respected, and rewarded for their contributions. Our compensation structure is designed to be fair, competitive, and transparent, ensuring that every team member is recognized and compensated equitably across roles, levels, and locations.

In accordance with various State’s transparency regulations, we provide the following salary range information for this position:

• Base salary range: $210,000 - $260,000 annually. The exact salary will be determined based on the selected candidate’s location, qualifications, experience, and relevant skills.

• Additional compensation: All full-time roles are eligible for an equity package in the form of stock options.

Perks of Horizon3.ai

• Inclusive Team: We value diversity and promote an inclusive culture where everyone can thrive.

• Growth Opportunities: Be part of a dynamic and growing team with numerous career development opportunities.

• Innovative Culture: Work in a collaborative environment that encourages creativity and out-of-the-box thinking.

• Remote Work: We are a 100% remote company. Enjoy the flexibility to work in the way that supports you and brings out your best.

• Competitive Compensation: We offer competitive salary, equity and benefits. Our benefits include health, vision & dental insurance for you and your family, a flexible vacation policy, and generous parental leave.

You Belong Here

Horizon3 is not just an equal opportunity employer - we are a community that values diversity, equity, and inclusion as fundamental principles of our culture and success. We are dedicated to fostering a workplace where everyone feels welcome and respected, regardless of race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, or any other legally protected status by law.

Our commitment to diversity and inclusion means we strive to attract, develop, and retain a workforce that reflects the varied communities we serve. We believe that diverse perspectives drive innovation and strengthen our ability to create cutting-edge cybersecurity solutions. At Horizon3, every team member is valued and supported in an environment that encourages personal and professional growth.

We welcome candidates from all backgrounds and experiences, and we encourage all qualified individuals to apply. Come be a part of Horizon3, where your unique contributions are recognized, and your potential is limitless.

Other Duties

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee. Duties, responsibilities, and activities may change at any time with or without notice.

Application Note

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